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Routes in Isosceles Peak

Keith-Lowery Route T 5.7 5a 15 V+ 13 MVS 4b
Northeast Face T Easy 5th 1+ 3 I 5 M 1c
Southwest Buttress T 5.6 4c 14 V 12 S 4b
Southwest Chute T Easy 5th 1+ 3 I 5 M 1c
Southwest Face T Easy 5th 1+ 3 I 5 M 1c
West - East Summit Traverse T Easy 5th 1+ 3 I 5 M 1c
West Chute T 5.7 5a 15 V+ 13 MVS 4b
West Face T 5.9 5c 17 VI 17 HVS 5a
Wilson Route T 5.10a 6a 18 VI+ 18 E1 5a
Elevation: 12,250 ft
GPS: 37.095, -118.542 Google Map · Climbing Map
Shared By: Chris S on Jul 11, 2010
Admins: Chris Owen, M. Morley, Adam Stackhouse, Salamanizer suchoski, Justin Johnsen, Vicki Schwantes
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Description

This peak forms the ridgeline splitting the Palisade and Dusy Basins (not the peak in the Mono Recesses). The East Summit is clearly the highest point (12,250'+), but the West Face has the most interesting climbing. Most parties climbing this face are satisfied with the West Summit (12,240'). Secor seems to suggest that the West Summit is the true summit, but several route descriptions (the SW Face and W Chute, in particular), could only be describing routes that visibly reach the East Summit.

It is possible to traverse from the West to the East summit. The West Summit - which has a register - appears to be climb on average once every two years.

East Summit Routes:
NE Face
West Chute
SW Face
SW Chute - the best descent

West Summit Routes:
West Face
Wilson Route (aka the North Face or the West Face, Left)
Keith-Lowery Route (aka West Face, Right)
SW Buttress - the best descent

Reference: Secor, The High Sierra, 3rd ed., pg 238.

Getting There

Follow the main trail from South Lake to Bishop Pass, and descend to the highest lake in Dusy Basin. Great bivy sites exist on the lakes southwest shore.

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Chris Owen
Big Bear Lake
Chris Owen   Big Bear Lake  
Sorry for the late response also, sounds good Chris. Jan 17, 2017
Chris S  
Sorry for a four-year-old response to your questions: I dropped off Mountain Project until recently.

I've guided the Keith-Lowery Route and the West-East Traverse with guests, found a topo of the Wilson Route in the summit register two years after the ascent, and solo'ed the Southwest Chute, Southwest Face, and Southwest Buttress.

After guiding in the area for seven years, I felt that this was worthy objective in its own right, but needed further clarification. The descriptions in Secor's guidebook sometimes confused the East Summit and West Summit routes, as best as I could tell by numerous trips into Dusy and Palisade Basins.

I've included all the routes that I'm aware of on these two summits to help with routefinding. May 26, 2014
Chris Owen
Big Bear Lake
Chris Owen   Big Bear Lake  
That's a good question. Remember this site is "Beyond the Guidebook" personal accounts of the climbs are encouraged. Sep 24, 2010
J. Albers
Colorado
J. Albers   Colorado
Did you actually climb all of these routes? Jul 12, 2010

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